Cross Site Scripting Vulnerability in itsourcecode Courier Management System
CVE-2026-16229

5.3MEDIUM

Key Information:

Vendor

Itsourcecode

Status
Courier Management System
Vendor
CVE Published:
19 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-16229?

A flaw has been identified in the itsourcecode Courier Management System that can be exploited through remote manipulation of the 'page' argument in the /index.php file. This vulnerability allows attackers to execute cross site scripting attacks, potentially leading to unauthorized actions on behalf of users. The exploit is publicly available and poses a risk to users of the affected software version.

Affected Version(s)

Courier Management System 1.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-16229 - Proof of Concept

References

https://vuldb.com/vuln/380051
vdb-entrytechnical-description
https://vuldb.com/vuln/380051/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-16229
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

HackTwo (VulDB User)
.